Yes thanks goes to the prop expert.
I too don't like the changes. Not because I hate the movie it comes from and not in a "it's different so it sucks" close minded fan boy kind of way but seriously it's the whole costume, the proportions are just....
....not good.
If that walked through the door in 1977 I don't know if Vader would be such a feared character and imposing figure.
But you can't blame Hayden. Who wouldn't want to be a part history and appear as Vader on screen.
edit: looking at that picture I'm some how reminded of Dark Helmet.....